One day, Mizuki Maehara, an actor, suddenly broke up with his girlfriend of five years, Midori Shimizu. With a single-minded desire to somehow get back together, he asks around for advice about his lost love and decides to wait until his 25th birthday, which will come in a month. However, no matter how long he waits, he hears nothing from Shimizu... This is "30 days of love and obsession" of a man who is going right and left with faint hopes of getting back together with Shimizu.